nx_methyl.nx

nx_methyl.nx -- cryptographic self-marking (Tier-1 immune). Biology: DNA methylation marks host DNA so restriction enzymes know NOT to cut self. Foreign viral DNA arrives unmethylated; restriction enzymes cleave it. Same principle, software substrate: every Nishi-emitted artifact carries a methyl-mark (originator id + chromatin hash + emission timestamp). Foreign bits lack the mark or carry stale/invalid marks; nx_restriction (queued) refuses them at the IO boundary. THIS IS ALSO THE FOUNDATION FOR MIMICRY DEFENSE. nx_decoy plants fake artifacts that LOOK like Nishi cells but carry NO methyl mark (or a deliberately-invalid one). A scraper reading them gets data that pattern-matches "Nishi cell" but the auth chain doesn't validate against any real chromatin -- so the scrape is detectable AS forgery if it ever shows up downstream. Composes: nx_chromatin -- the canonical originator-chain primitive that methyl marks reference nx_xenocell -- foreign artifacts found in the substrate that lack valid methyl become evidence nx_decoy -- decoy artifacts carry invalid methyl by design so leaked decoys are detectable nx_pamp + nx_crispr -- detection-and-memory primitives nx_restriction (queued) -- IO-boundary check that consumes methyl V1 ships: - struct NxMethylMark with originator/chromatin_hash/ts - mark/verify functions - is_self predicate (returns 1 if mark validates) - "deliberate-invalid" variant for decoy use Gap list (V1 honest perf verdict): - signature is externally supplied (V2 inlines nx_ml_dsa_65) - no canonical bytes-to-mark function; caller supplies hash - no propagation through nx_brane capability tokens (queued) - no peer-mesh sharing of revoked originators (queued) genealogy_id: cardinal_2026-05-19_tier_1_innate_immune_microbial +